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.IMPROVEMENT IN PUMPS.

OLIVIER- MILLER, OF SALEM, OHIO, ASSIGN OR TO vIJIMSELF AND THOMAS D. BALL.

Letters .Patent No. 60,535, dated December 18, 18.66.

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TO ALL WHOM IT MAY CONCERN: l

Be it known thnt I, Onrvnn MILLER, o Salem, in the county oi' Columbiana, and State of Ohio, have'. invented certainnew and useful improvements in Steain Pumps; `and I do hereby declaro that the following is a full and complete description ef the construction and operation of the same. reference being hzi'd to the accompanying drawings, making a part of this specification` in which- Figure lhis a front view of the pump.

Figure 2 is a vertical section.

Figures 3 and 4 are detached sections that will be referred to in the'desorjption.

Like letters of reference refer to like parts inthe several views presented,

In the drawings,- A represents' the platform on which the pumprosts. AI inthe induction pipe which com. municates with a reservoir below, and extends up, of the form shown in the dr'awing, beingbolted at a a to the cylinder B', and is bifurcatcd at a', thus communicating with the cylinder B. Through the centre of the cylinder is a diaphragm, B'. through which the piston-rod b passes through the stating-boxes b', on'each side of the diaphragm, for the purpose ofkeeping the nid n. positron aud'prevcnt leairago rom one chamber to the other. Near each ond ofthe piston-rod are pistons, b, as shown, which work backward and forward in said cylinder, the ends of which are closed by heads B" B". C C are cylinders ,that rest on and are screwed ,into the chambersvD D'" at c, as shown in fig. 2, the cnds of those chambers, D D", and cylinders C C', being closed by'v heads in the same way as the cylinder The chambers D D" are attachedy to the chest E, that rests on the. cylinder B, by connecting pipes, D D", which can be of 'any desired lengtlnitlic ends being screwed, asi shown, in the chambers D D" and chest E, thus connecting them; the chest E being covered by a cap, E', which is secured to the cylinder by screw-bolts; or any other means. Between the cy inders C C is a nozzle, G, which is screwed on to a projection, c', of the cross-pipe H that\ connects the chambers D D", this nozzle is of the form shown in figs. 1 and 2. A'eheck-valve, d, in the lower end, as represented, prevents the return 'of the water when the pump is at rest or otherwise. In'each of the cylinders C C is a plunger, F F, connected to a rod, fi Through the crosspipes, H, extends the valve-rod I, on each end of which is a valve, I I. i z' are boxes across the end of 'the cross-pipe, in which the valve-rod moves, the valves closing and opening the ends of said cross-pipes alternately. Fig. 3 is 'a view of the chest E, with the caps E' removed along thel line X X, iig'. 2. This chest is divided into two compartmentsw] J', there being a'valvc in each one; thesevalves are held in place by the edge of the plate e resting on the end of the valves e d. Fig. 4 is a view of the induction pipe removed along the line X X', in iig. 2, and to which are attached the valves g, shown blico in fig. 2. 'These valves are to allow the water to pass up through the induction pipe into the chambers K K gfthe cylinder B, and prevent its returning. The diaphragm B', passing through said cylinder, makes two dhamhers, K K.

The general construction being given, the operation is a's follows: When thplunger F in the cylinder C is forced down from F Ito F by steam, the rods f, being worked by means of a walking beam-or other mechanical. means, the column of )vater iu s aid cylinder is forced or compressed down into the chamber D. s the water passes into this-chamber it closes the valve I, and is passed down through thofonueeting pipe D into the chest E, in this part or section, J, of the chest, closing the valve e, Ithon through the opening m into the'chamber K v of the cylinder B, forcing the pistou along from p to pi, in 4the position seen.l in iig. 2, thus forcingv the water Vthat had passed into the cylinder through the valve g from the induction pipe into the chestthrough the valve a',

indicated by the dotted lines e iig. 2, in the scction'J, iig. vd, of the chest, filling it, and will pass up through the connecting pipe D into the chamber D". The valve I" being open, the Surplus waterwill pass into the cross-pipe H, and up through the val-:e l, shown in iig. 1, some of it passing from the chamber D" up into the cylinder C', filling` tbe space botwecn the plunger Fl and the chamber D", and some vwill pass from the chest E down through the opening m', into the chamber K of the cylinder B, between the piston b and head Bm; the operation is then reversed, the space below the plunger F" in the cylinder C', chamber D" and head B", in the chamber K' of the cylinder B, and their connections, being filled with water, when the plunger is forced down, acts upon the water, closing the'valve I in the chamber D", and thus opening the valvoI in theehamber rie-'iss 2 D, the sectionK J' of thechestbeing full, the force of the water closes the valve e', thus passes into the chamber K', between the piston and head, forcing the piston from 7' to r', and allowing the chamber to be filled, forcing the Water that is in the bhamber K', between the diaphragm and piston, (which rushes up through the valve g when the piston is removed into the position seen in fig. 2,) up through the valve c in the section J of the chest, through the connecting pipe D', into the chamber D, forcing the plunger F, in the cylinder C, up from F to FQ .filling the space below,.tlxe surplus passing into the cross-pipe H, and up through the check-valve into the nozzle and out at k; thus the operation is the same, only in reverse order. The water, on leaving the induction pipe, is equally distributed from the diaphragm through the several sections of the pump, producing thereby an equiylibrium of the water throughout its entire arrangement, the water in the one side acting as a counterbalance to that in the other, producing thereby a uniformity of action in each. The steam being admitted through the ports s, at the upper end of the cylinders, it therefore acts directly upon the column of water in each; hence a greater efieiency and drectness of action are obtained. Through the intervention of the plunger-s F F', exhaust or direct steam, induced through the ports s, may be used as an adjunct, and act in concert with the appliances for operating'the plungers, and the cylinders may be arranged in such way as to have the functions of condensers in employing steam, which'may be done with effect and economy, to the engine working the pump.

I am aware that F. F. Prudhomme obtained a patent, September 22, 18613, feria certain improvement in pumps, whiclrnI depot' claim; but what distinguishes my improvements from` others, is thcveonstruction and arrangement 'of a steampump, as hereinbefore described.

What I claim as my improvement, and desire to secure by Letters Patent, is-

A 1. The chamberedchest E, with its valves c c', i'n combination with the cylinder B B, pistons b, valvesgg,

and induction pipe A, all arranged in relation te each other, and operating cojointly for the purpose set forth.

2. I claim, in combination with the foregoing, cylinders C C', with the respective plungers, chambers D Dl and valves I I, pipe Il,- valve (l, and nozzle G, arranged and operating in the manner and for 'the purpose i set forth.

3. I claim the chamber J J of the chest valves ce, and openings m m'fin combination with the cylinder B, pipes D D, and chamber D D, as and for the purpose sct forth.

OLIVER MILLER.

- Witnesses:

W. H. Bunmnea, l J. H. Bunnrnoa. 

